Free Collin County Tax Delinquent Property List

Collin County covers Plano, Frisco, McKinney, and Allen -- some of the fastest-appreciating suburban real estate in Texas. That cuts two ways for a tax-delinquent investor. The delinquency rate is low and the courthouse-steps competition is fierce, but the parcels that do fall behind tend to carry serious equity. The raw data behind all of it is public and free. The catch is the usual Texas catch: no single office hands you a list, and the four offices that hold the pieces were never designed to work together.

This guide covers every free source of Collin County tax delinquent data, what each one actually gives you, where each falls short, and how to join scattered public records into a working list.

How Delinquency Works in Texas

Texas is a tax deed state with a redemption period -- often called a redeemable deed state. There is no certificate auction like Florida's. Instead, the county sues, forecloses, and sells the property itself. Knowing the calendar tells you where the inventory sits at any moment:

• January 31 -- last day to pay the year's property taxes without penalty.
• February 1 -- unpaid taxes become delinquent. Penalty and interest start stacking immediately, beginning at 7% and climbing monthly.
• July 1 -- accounts still unpaid are typically referred to the county's delinquent-tax collection law firm, and an additional collection penalty of up to 20% attaches. This referral date matters: it is when pressure on the owner escalates sharply.
• Suit and judgment -- the taxing units file a foreclosure suit in district court. This can happen within a year of delinquency or many years later, depending on the account.
• First Tuesday of the month -- foreclosed properties go to the tax sale. Texas sales are traditionally held at the courthouse, though many counties, including large DFW-area counties, have moved to online auction platforms. Confirm the current venue and platform with the county before sale day -- never assume last year's format.
• Redemption -- after the sale, the former owner can redeem: two years for homestead and agricultural property, 180 days for everything else, at a 25% premium in the first year and 50% in the second.

So "delinquent property in Collin County" is really three pools: accounts that are behind but not yet in suit, properties in active litigation heading for a sale date, and struck-off properties that failed to sell and now sit with the taxing units. Each pool rewards a different strategy, and each lives in a different office.

A quirk worth knowing: the equity profile

In many Texas counties, a large share of the delinquent roll is low-value land and slivers. Collin County inverts that. With median home values among the highest in the state, even a modest tract carries a tax bill that is tiny relative to market value. That is exactly the profile where owners find money, relatives step in, or the account redeems at the last minute -- which is why upstream contact, before the sale, matters more here than almost anywhere else in Texas.

Source 1: The County Tax Assessor-Collector

The tax office bills and collects for the county and most of the taxing units inside it. This is where delinquency originates, and it is your first stop.

What you can get for free:

• Account-level tax search -- look up any property and see current and prior-year status, amounts due, and payment history.
• The delinquent tax roll -- Texas tax rolls are public records. The full delinquent file is available on request under the Texas Public Information Act, usually as a spreadsheet or delimited file for a nominal fee or free. This is the single closest thing to a true "delinquent list" that exists.
• Prior-year balances -- accounts carrying multiple years of unpaid taxes, which is the strongest distress signal on the roll.

Where it falls short: the roll is built around accounts and amounts, not people. It tells you a parcel owes three years of taxes; it does not tell you the owner died in 2022, the mailing address is a house the family sold, or the "owner" is an estate that was never probated. And a records request takes days to turn around, so the file is a snapshot the moment you receive it.

Source 2: The Central Appraisal District

The appraisal district does not track delinquency at all -- but it is where the delinquent roll becomes usable, because it holds everything the tax roll is missing.

Free data available here:

• Owner of record and the mailing address on file for tax notices.
• Property characteristics -- year built, square footage, land use, acreage, improvement details.
• Appraised and market values, plus exemption status.
• Deed and sales history -- the last transfer, which anchors your equity math.
• Bulk data exports -- Texas appraisal districts publish full appraisal-roll downloads. This is the difference between researching 40 parcels and researching 400,000.

The two fields that matter most for outreach are the mailing address and the exemption status. A mailing address that differs from the property address flags an absentee owner. A homestead exemption that quietly dropped off a parcel with no corresponding sale is one of the most reliable life-event signals in Texas data -- it frequently means the owner died, moved into care, or walked away. An over-65 exemption paired with growing delinquency often means a tax-deferral situation or an estate nobody has dealt with yet.

Source 3: Sale Postings, the District Clerk, and the Law Firm List

Once a taxing unit sues, the file becomes litigation, and litigation is public.

• District clerk case records -- tax foreclosure suits are searchable by case type. A new filing is your earliest public warning that a parcel is headed for the auction block, often 6-18 months before a sale date. Almost nobody works this window.
• Sheriff / constable sale postings -- notices of sale are posted publicly (courthouse bulletin and county website) at least 21 days before the first-Tuesday sale. This is the list every auction bidder works from.
• The delinquent-tax law firm's sale list -- the county's collection firm publishes upcoming tax sales and, usually, the judgment amounts. Same parcels as the constable posting, often in a friendlier format.
• The struck-off list -- properties that went to sale and drew no acceptable bid are "struck off" to the taxing units and can later be resold. In a county this competitive the struck-off pool is small and picked over, but it is public, it is free, and occasionally something usable surfaces. Our Texas struck-off property guide covers how those resales work.

The underrated document here is the tax suit petition itself. It names every defendant the county's attorneys could identify -- lienholders, heirs, unknown-owner classes. That is a free, county-prepared summary of exactly the title problems you would otherwise pay to discover.

Assembling a Working List

Every source above is free. The work is joining them. The honest sequence:

1. Request the delinquent roll from the tax office. This is your spine: property IDs, years delinquent, and amounts owed.
2. Download the appraisal roll from the CAD and join it to your spine on the property ID. You now have owners, mailing addresses, values, and exemptions.
3. Pull the district clerk's tax-suit filings and flag every parcel already in litigation. Pre-suit and in-suit parcels need completely different approaches and timelines.
4. Cross-check the monthly sale postings to remove parcels about to sell -- or to build your auction shortlist, if bidding is your strategy.
5. Filter to what you actually buy. Cut government parcels, common areas, slivers, and bills too small to signal real distress.
6. Screen for the signals that matter -- multi-year delinquency, absentee mailing address, a vanished homestead exemption, an owner name that reads like an estate, tax owed that is tiny relative to appraised value.
7. Skip trace what survives. The CAD mailing address is a starting point, not a contact. On a distressed parcel it is frequently the address the owner left behind.

What this actually costs you

Step	Cost	Realistic time
Request the delinquent roll	Free to nominal	Days of turnaround
Download and join CAD data	Free	3-8 hours (first time)
Pull suit filings and sale postings	Free	1-3 hours monthly
Clean, filter, and de-duplicate	Free	4-10 hours
Research deceased owners and heirs	Free to costly	Open-ended
Skip trace	Per-record	Depends on volume
Repeat next cycle	Free	Most of it, again

The data is free. The assembly is not, and the assembly is the part you pay for every single cycle.

What Most People Miss in a Collin County Pull

First-Tuesday bidding in a wealthy DFW county is a crowded room. The edge is upstream, in the records nobody joins:

• The suit-filing window. Between the day a foreclosure suit is filed and the day a sale is posted, the owner has a real, urgent problem and almost no one contacting them about it. That window is public record and routinely a year long.
• Deceased-owner parcels. Taxes go unpaid because there is no one left to pay them. These sit at the intersection of "long delinquent" and "no responsive owner," and they are invisible if you only read the tax roll.
• Heir-held property. When title never left an estate, you are not negotiating with an owner -- you are locating heirs. It is slow, and the slowness is precisely why the auction crowd skips it.
• The exemption that vanished. A homestead exemption dropping off with no sale is a life-event signal, and it shows up in CAD data before it shows up anywhere else.
• Redemption math on anything you buy. High-equity counties redeem. If you do bid, price every deal assuming the 25% first-year redemption premium is the return -- our Texas redemption guide walks through that math.

If you want the statewide version of this playbook rather than one county, start with our free Texas tax delinquent property list guide.

Where LienSuite Fits

You can do all of the above by hand, for free, and plenty of good investors do. LienSuite exists for the part after you have done it twice and realized the assembly repeats forever.

LienSuite covers 389 counties across all 50 states, including the DFW metro. The county records are already pulled, joined, and normalized, so tax owed sits next to the owner, the mailing address, the appraised value, and the property characteristics in one row. Deceased-owner and heir signals are flagged rather than researched one parcel at a time. Skip trace is built in, so a flagged parcel becomes a phone number without exporting to another tool. And saved properties move through a deal pipeline instead of dying in the seventh tab of a spreadsheet.

What LienSuite does not do is invent data. It is the same public records the county publishes -- assembled, scored, and kept current, so you spend your hours on deals instead of on joins.

Frequently Asked Questions

Is the Collin County tax delinquent list actually free?

Yes. The delinquent tax roll is a public record available from the tax office under the Texas Public Information Act, the appraisal district publishes ownership and value data, and sale postings are free by law. What costs you is joining four sources into one usable list and refreshing it every cycle.

When are Collin County tax sales held?

Texas tax sales are held on the first Tuesday of the month when there are properties to sell. Venue and platform vary -- many DFW-area counties now conduct sales online -- so confirm the current format with the county or its collection firm before sale day rather than relying on last year's process.

Do I get the property immediately if I win the auction?

You receive a deed, but it is subject to the former owner's redemption right: two years for homestead or agricultural property, 180 days for other property, at a 25% premium in year one and 50% in year two. In a high-equity county, plan on redemptions happening.

What is a struck-off property?

A property that went to tax sale and received no acceptable bid, so it was struck off to the taxing units. These can later be resold, sometimes below the judgment amount. In Collin County the pool is small -- high values mean most parcels draw bids -- but the list is public and worth a periodic check.

How often does the delinquent list change?

Continuously. Owners pay, suits settle, parcels get pulled from the sale list days before the auction. A list assembled last quarter has already decayed, which is why refresh cadence matters more than list size.

See the Free List for Your County

The fastest way to find out whether Collin County -- or any county you are considering -- is worth your time is to look at the actual delinquent inventory rather than read about it. LienSuite publishes free county tax-delinquent lists you can browse right now, no assembly required.

Browse the free Collin County tax-delinquent list -- or pick any of the 389 counties we cover at liensuite.com/counties and see the real parcels, owners, and amounts owed before you commit a weekend to joining spreadsheets.

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Disclaimer: This article is for educational purposes only and is not legal, tax, or investment advice. LienSuite is an independent software product and is not affiliated with, endorsed by, sponsored by, or associated with any third-party coach, author, podcast, course, community, or organization. All third-party trademarks are the property of their respective owners.